828057553 has 4 divisors (see below), whose sum is σ = 830364480. Its totient is φ = 825750628.

The previous prime is 828057511. The next prime is 828057577. The reversal of 828057553 is 355750828.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 828057553 - 2²⁵ = 794503121 is a prime.

It is a super-2 number, since 2×828057553² = 1371358622160695618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828057253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152925 + ... + 1153642.

It is an arithmetic number, because the mean of its divisors is an integer number (207591120).

Almost surely, 2^828057553 is an apocalyptic number.

It is an amenable number.

828057553 is a deficient number, since it is larger than the sum of its proper divisors (2306927).

828057553 is a wasteful number, since it uses less digits than its factorization.

828057553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306926.

The product of its (nonzero) digits is 336000, while the sum is 43.

The square root of 828057553 is about 28775.9891750049. The cubic root of 828057553 is about 939.0459435028.

The spelling of 828057553 in words is "eight hundred twenty-eight million, fifty-seven thousand, five hundred fifty-three".